I have a 70% shade tarp.. its a tight woven plastic material. whats the best way to hang stuff from this? the best i got right now is to use 2" pieces of copper wire to try and hook into it. anyone got a better idea?

What? Give a fer instance. It's hard to give meaningful help when there's no clue about weight or size or deadliness.

If you're hanging a bowling ball from the tarp, tie a tennis ball in the tarp before you set it up, set up the tarp, tie a rope above the ball and then strap the bowling ball to that. Just be sure your ball is securely tied into the tarp.